At GDC 2013 Sony has decided to focus on its relationships with indie developers, revealing free-to-play PC shooter Blacklight: Retribution and episodic adventure Primal Carnage: Genesis are coming to the PlayStation 4. That makes three self-published games destined for Sony's next-gen console, including Jonathan Blow's The Witness. Blacklight: Retribution is also making use of Sony's Pub Fund for marketing support, the first game on the platform to do so. Sony hasn't forgotten about its existing platforms however, also announcing Spelunky and Divekick for PS3 and Vita, Metrico for Vita, and the handheld debut of Limbo on Vita later this year. Check after the break for a press release that details the announcements, plus trailers for several of the new games.